Description

Here is another indispensable tool for the working professional or engineering student.
There are four (4) calculators in this control valve sizing application. You have the ability to calculate either the volumetric flow rate or the Cv of the valve for both liquid and gas service. This allows you to crunch numbers quickly for preliminary sizing purposes. As always, consult your vendor with the results obtained to ensure you have selected the correct valve, trim, etc.
For the liquid sizing tabs you will need to enter in the liquid flow rate, pressure drop across the valve and the specific gravity. The application will calculate the valve Cv along with recommending the actual manufacturer's Cv based on a ratio of 1.25 to 2 times the calculated Cv. In order to determine the liquid flow rate just enter the Cv, specific gravity and the pressure drop across the valve.
For the gas sizing tabs you will need to enter in the gas flow rate, the molecular weight of the gas, the inlet and outlet pressures on the valve and the temperature. The application will calculate the valve Cv along with recommending the actual manufacturer's Cv based on a ratio of 1.25 to 2 times the calculated Cv. In order to determine the liquid flow rate just enter the Cv in lieu of the flow rate, the molecular weight of the gas, the inlet and outlet pressures on the valve and the temperature.
Please leave feedback regarding this application at our support site. We will take this information into account for the future updates.

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